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Do male and female servers at Swank Bar work the same number of hours? A sample...

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Statistics

Do male and female servers at Swank Bar work the same number ofhours? A sample of 65 female servers worked an average of 30 hoursper week, with a standard deviation of 2. A sample of 65 maleservers worked an average of 28 hours per week, with a standarddeviation of 4.


Let μ1μ1 and μ2 represent the typical number of hours worked by allfemale and male servers at Swank Bar, respectively. Estimate with a87% confidence level how many more hours female servers work. Roundanswers to the nearest hundredth.
< μ1−μ2 <

Which of the following does your data suggest?

  • Female and male servers work about the same number ofhours
  • Male servers work more hours
  • Female servers work more hours

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